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feat(mobile): enhance iOS image preview with SDWebImage and improved …
…QuickLook handling - Add SDWebImage dependency to FollowNative.podspec - Refactor ImagePreview and PreviewControllerController for robust image preview - Implement dynamic file extension handling for image preview - Update WebView bridge to support more flexible image preview payload - Improve MarkdownImage component to use Uint8Array for image conversion Signed-off-by: Innei <[email protected]>
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47 changes: 27 additions & 20 deletions
47
apps/mobile/web-app/html-renderer/src/components/image.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,37 +1,44 @@ | ||
| import { useRef } from "react" | ||
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| import type { HTMLProps } from "~/HTML" | ||
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| export const MarkdownImage = (props: HTMLProps<"img">) => { | ||
| const { src, ...rest } = props | ||
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| const imageRef = useRef<HTMLImageElement>(null) | ||
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| return ( | ||
| <button | ||
| type="button" | ||
| onClick={() => { | ||
| if (!src) return | ||
| const $image = new Image() | ||
| $image.src = src | ||
| $image.crossOrigin = "anonymous" | ||
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| $image.onload = () => { | ||
| // Create a canvas element | ||
| const canvas = document.createElement("canvas") | ||
| canvas.width = $image.width | ||
| canvas.height = $image.height | ||
| const $image = imageRef.current | ||
| if (!$image) return | ||
| const canvas = document.createElement("canvas") | ||
| canvas.width = $image.naturalWidth | ||
| canvas.height = $image.naturalHeight | ||
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| // Draw image on canvas | ||
| const ctx = canvas.getContext("2d") | ||
| ctx?.drawImage($image, 0, 0) | ||
| // Draw image on canvas | ||
| const ctx = canvas.getContext("2d") | ||
| if (!ctx) return | ||
| ctx.drawImage($image, 0, 0) | ||
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| // Convert to base64 | ||
| const imageBase64 = canvas.toDataURL("image/png") | ||
| canvas.toBlob((blob) => { | ||
| if (!blob) return | ||
| const reader = new FileReader() | ||
| // eslint-disable-next-line unicorn/prefer-blob-reading-methods | ||
| reader.readAsArrayBuffer(blob) | ||
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| // Remove base64 prefix | ||
| const base64 = imageBase64.split(",")[1]! | ||
| bridge.previewImage([base64]) | ||
| } | ||
| reader.onloadend = () => { | ||
| const uint8Array = new Uint8Array(reader.result as ArrayBuffer) | ||
| bridge.previewImage({ | ||
| images: [uint8Array], | ||
| index: 0, | ||
| }) | ||
| } | ||
| }, "image/png") | ||
| }} | ||
| > | ||
| <img {...rest} src={src} /> | ||
| <img {...rest} crossOrigin="anonymous" src={src} ref={imageRef} /> | ||
| </button> | ||
| ) | ||
| } |